Quarterly report pursuant to Section 13 or 15(d)

Debt and Financing Arrangements - Gain (Loss) on Derivatives (Details)

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Debt and Financing Arrangements - Gain (Loss) on Derivatives (Details) - Cash Flow Hedging - Interest Rate Swaps - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Gain Recognized in AOCI on Derivatives     $ 5,636 $ 1,787
Interest Expense        
Derivative Instruments, Gain (Loss) [Line Items]        
Amount of Loss Recognized in Income on Derivatives $ (470) $ (790) (2,006) (2,444)
Amount of Loss Reclassified from AOCI into Income (Effective Portion*)     $ (1,513) $ (1,845)